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// Copyright (c) 2016 The WebM project authors. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
#include "common/vp9_level_stats.h"
#include <memory>
#include <string>
#include <vector>
#include "gtest/gtest.h"
#include "common/hdr_util.h"
#include "common/vp9_header_parser.h"
#include "mkvparser/mkvparser.h"
#include "mkvparser/mkvreader.h"
#include "testing/test_util.h"
namespace {
// TODO(fgalligan): Refactor this test with other test files in this directory.
class Vp9LevelStatsTests : public ::testing::Test {
public:
Vp9LevelStatsTests() : is_reader_open_(false) {}
~Vp9LevelStatsTests() override { CloseReader(); }
void CloseReader() {
if (is_reader_open_) {
reader_.Close();
}
is_reader_open_ = false;
}
void CreateAndLoadSegment(const std::string& filename,
int expected_doc_type_ver) {
ASSERT_NE(0u, filename.length());
filename_ = test::GetTestFilePath(filename);
ASSERT_EQ(0, reader_.Open(filename_.c_str()));
is_reader_open_ = true;
pos_ = 0;
mkvparser::EBMLHeader ebml_header;
ebml_header.Parse(&reader_, pos_);
ASSERT_EQ(1, ebml_header.m_version);
ASSERT_EQ(1, ebml_header.m_readVersion);
ASSERT_STREQ("webm", ebml_header.m_docType);
ASSERT_EQ(expected_doc_type_ver, ebml_header.m_docTypeVersion);
ASSERT_EQ(2, ebml_header.m_docTypeReadVersion);
mkvparser::Segment* temp;
ASSERT_EQ(0, mkvparser::Segment::CreateInstance(&reader_, pos_, temp));
segment_.reset(temp);
ASSERT_FALSE(HasFailure());
ASSERT_GE(0, segment_->Load());
}
void CreateAndLoadSegment(const std::string& filename) {
CreateAndLoadSegment(filename, 4);
}
void ProcessTheFrames() {
std::vector<uint8_t> data;
size_t data_len = 0;
const mkvparser::Tracks* const parser_tracks = segment_->GetTracks();
ASSERT_TRUE(parser_tracks != NULL);
const mkvparser::Cluster* cluster = segment_->GetFirst();
ASSERT_TRUE(cluster);
while ((cluster != NULL) && !cluster->EOS()) {
const mkvparser::BlockEntry* block_entry;
long status = cluster->GetFirst(block_entry); // NOLINT
ASSERT_EQ(0, status);
while ((block_entry != NULL) && !block_entry->EOS()) {
const mkvparser::Block* const block = block_entry->GetBlock();
ASSERT_TRUE(block != NULL);
const long long trackNum = block->GetTrackNumber(); // NOLINT
const mkvparser::Track* const parser_track =
parser_tracks->GetTrackByNumber(
static_cast<unsigned long>(trackNum)); // NOLINT
ASSERT_TRUE(parser_track != NULL);
const long long track_type = parser_track->GetType(); // NOLINT
if (track_type == mkvparser::Track::kVideo) {
const int frame_count = block->GetFrameCount();
const long long time_ns = block->GetTime(cluster); // NOLINT
for (int i = 0; i < frame_count; ++i) {
const mkvparser::Block::Frame& frame = block->GetFrame(i);
if (static_cast<size_t>(frame.len) > data.size()) {
data.resize(frame.len);
data_len = static_cast<size_t>(frame.len);
}
ASSERT_FALSE(frame.Read(&reader_, &data[0]));
parser_.ParseUncompressedHeader(&data[0], data_len);
stats_.AddFrame(parser_, time_ns);
}
}
status = cluster->GetNext(block_entry, block_entry);
ASSERT_EQ(0, status);
}
cluster = segment_->GetNext(cluster);
}
}
protected:
mkvparser::MkvReader reader_;
bool is_reader_open_;
std::unique_ptr<mkvparser::Segment> segment_;
std::string filename_;
long long pos_; // NOLINT
vp9_parser::Vp9HeaderParser parser_;
vp9_parser::Vp9LevelStats stats_;
};
TEST_F(Vp9LevelStatsTests, VideoOnlyFile) {
CreateAndLoadSegment("test_stereo_left_right.webm");
ProcessTheFrames();
EXPECT_EQ(256, parser_.width());
EXPECT_EQ(144, parser_.height());
EXPECT_EQ(1, parser_.column_tiles());
EXPECT_EQ(0, parser_.frame_parallel_mode());
EXPECT_EQ(11, stats_.GetLevel());
EXPECT_EQ(479232, stats_.GetMaxLumaSampleRate());
EXPECT_EQ(36864, stats_.GetMaxLumaPictureSize());
EXPECT_DOUBLE_EQ(264.03233333333333, stats_.GetAverageBitRate());
EXPECT_DOUBLE_EQ(147.136, stats_.GetMaxCpbSize());
EXPECT_DOUBLE_EQ(19.267458404715583, stats_.GetCompressionRatio());
EXPECT_EQ(1, stats_.GetMaxColumnTiles());
EXPECT_EQ(11, stats_.GetMinimumAltrefDistance());
EXPECT_EQ(3, stats_.GetMaxReferenceFrames());
EXPECT_TRUE(stats_.estimate_last_frame_duration());
stats_.set_estimate_last_frame_duration(false);
EXPECT_DOUBLE_EQ(275.512, stats_.GetAverageBitRate());
}
TEST_F(Vp9LevelStatsTests, Muxed) {
CreateAndLoadSegment("bbb_480p_vp9_opus_1second.webm", 4);
ProcessTheFrames();
EXPECT_EQ(854, parser_.width());
EXPECT_EQ(480, parser_.height());
EXPECT_EQ(2, parser_.column_tiles());
EXPECT_EQ(1, parser_.frame_parallel_mode());
EXPECT_EQ(30, stats_.GetLevel());
EXPECT_EQ(9838080, stats_.GetMaxLumaSampleRate());
EXPECT_EQ(409920, stats_.GetMaxLumaPictureSize());
EXPECT_DOUBLE_EQ(447.09394572025053, stats_.GetAverageBitRate());
EXPECT_DOUBLE_EQ(118.464, stats_.GetMaxCpbSize());
EXPECT_DOUBLE_EQ(241.17670131398313, stats_.GetCompressionRatio());
EXPECT_EQ(2, stats_.GetMaxColumnTiles());
EXPECT_EQ(9, stats_.GetMinimumAltrefDistance());
EXPECT_EQ(3, stats_.GetMaxReferenceFrames());
stats_.set_estimate_last_frame_duration(false);
EXPECT_DOUBLE_EQ(468.38413361169108, stats_.GetAverageBitRate());
}
TEST_F(Vp9LevelStatsTests, SetDuration) {
CreateAndLoadSegment("test_stereo_left_right.webm");
ProcessTheFrames();
const int64_t kDurationNano = 2080000000; // 2.08 seconds
stats_.set_duration(kDurationNano);
EXPECT_EQ(256, parser_.width());
EXPECT_EQ(144, parser_.height());
EXPECT_EQ(1, parser_.column_tiles());
EXPECT_EQ(0, parser_.frame_parallel_mode());
EXPECT_EQ(11, stats_.GetLevel());
EXPECT_EQ(479232, stats_.GetMaxLumaSampleRate());
EXPECT_EQ(36864, stats_.GetMaxLumaPictureSize());
EXPECT_DOUBLE_EQ(264.9153846153846, stats_.GetAverageBitRate());
EXPECT_DOUBLE_EQ(147.136, stats_.GetMaxCpbSize());
EXPECT_DOUBLE_EQ(19.267458404715583, stats_.GetCompressionRatio());
EXPECT_EQ(1, stats_.GetMaxColumnTiles());
EXPECT_EQ(11, stats_.GetMinimumAltrefDistance());
EXPECT_EQ(3, stats_.GetMaxReferenceFrames());
}
} // namespace
int main(int argc, char* argv[]) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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